Answer:
Photosynthesis
Explanation:
If thats one of the options, thats the answer. Let me know if its not, and I'll be glad to help :)
Explanation:
Calcium is the element that has 2 valence electrons.
In a double-replacement reaction, the _____.?
There are many more interesting things to ask about double replacement reactions than are contained in the list given here. But the only correct choice is:
C.reactants are two ionic compounds
Answer:
Work done, W = 100 J
Explanation:
We have, Billy the friendly Robot uses 50 N of force to lift a box 2 meters in the air.
It is required to find the work done by Billy.
Work done by an object is given in terms of force and displacement. The formula used to find the work done is given by :

So, the work performed by Billy is 100 J.
Tabulations of chemical elements differing in their organization from the traditional seen periodic system